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vaapi_encode_h265: Query encoding block sizes and features

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Signed-off-by: Fei Wang <fei.w.wang@intel.com>
This commit is contained in:
Mark Thompson 2022-03-17 14:41:52 +08:00 committed by Haihao Xiang
parent 77fd2f9c7c
commit 9f02e03387
1 changed files with 108 additions and 6 deletions
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114
libavcodec/vaapi_encode_h265.c
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@ -56,6 +56,9 @@ typedef struct VAAPIEncodeH265Context {
VAAPIEncodeContext common;
// Encoder features.
uint32_t va_features;
// Block size info.
uint32_t va_bs;
uint32_t ctu_size;
uint32_t min_cb_size;
@ -427,9 +430,9 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
vps->vps_max_latency_increase_plus1[i];
}
// These have to come from the capabilities of the encoder. We have no
// way to query them, so just hardcode parameters which work on the Intel
// driver.
// These values come from the capabilities of the first encoder
// implementation in the i965 driver on Intel Skylake. They may
// fail badly with other platforms or drivers.
// CTB size from 8x8 to 32x32.
sps->log2_min_luma_coding_block_size_minus3 = 0;
sps->log2_diff_max_min_luma_coding_block_size = 2;
@ -447,6 +450,42 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
sps->pcm_enabled_flag = 0;
// update sps setting according to queried result
#if VA_CHECK_VERSION(1, 13, 0)
if (priv->va_features) {
VAConfigAttribValEncHEVCFeatures features = { .value = priv->va_features };
// Enable feature if get queried result is VA_FEATURE_SUPPORTED | VA_FEATURE_REQUIRED
sps->amp_enabled_flag =
!!features.bits.amp;
sps->sample_adaptive_offset_enabled_flag =
!!features.bits.sao;
sps->sps_temporal_mvp_enabled_flag =
!!features.bits.temporal_mvp;
sps->pcm_enabled_flag =
!!features.bits.pcm;
}
if (priv->va_bs) {
VAConfigAttribValEncHEVCBlockSizes bs = { .value = priv->va_bs };
sps->log2_min_luma_coding_block_size_minus3 =
ff_ctz(priv->min_cb_size) - 3;
sps->log2_diff_max_min_luma_coding_block_size =
ff_ctz(priv->ctu_size) - ff_ctz(priv->min_cb_size);
sps->log2_min_luma_transform_block_size_minus2 =
bs.bits.log2_min_luma_transform_block_size_minus2;
sps->log2_diff_max_min_luma_transform_block_size =
bs.bits.log2_max_luma_transform_block_size_minus2 -
bs.bits.log2_min_luma_transform_block_size_minus2;
sps->max_transform_hierarchy_depth_inter =
bs.bits.max_max_transform_hierarchy_depth_inter;
sps->max_transform_hierarchy_depth_intra =
bs.bits.max_max_transform_hierarchy_depth_intra;
}
#endif
// STRPSs should ideally be here rather than defined individually in
// each slice, but the structure isn't completely fixed so for now
// don't bother.
@ -539,6 +578,23 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
pps->cu_qp_delta_enabled_flag = (ctx->va_rc_mode != VA_RC_CQP);
pps->diff_cu_qp_delta_depth = 0;
// update pps setting according to queried result
#if VA_CHECK_VERSION(1, 13, 0)
if (priv->va_features) {
VAConfigAttribValEncHEVCFeatures features = { .value = priv->va_features };
if (ctx->va_rc_mode != VA_RC_CQP)
pps->cu_qp_delta_enabled_flag =
!!features.bits.cu_qp_delta;
pps->transform_skip_enabled_flag =
!!features.bits.transform_skip;
// set diff_cu_qp_delta_depth as its max value if cu_qp_delta enabled. Otherwise
// 0 will make cu_qp_delta invalid.
if (pps->cu_qp_delta_enabled_flag)
pps->diff_cu_qp_delta_depth = sps->log2_diff_max_min_luma_coding_block_size;
}
#endif
if (ctx->tile_rows && ctx->tile_cols) {
int uniform_spacing;
@ -640,8 +696,8 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
.coded_buf = VA_INVALID_ID,
.collocated_ref_pic_index = 0xff,
.collocated_ref_pic_index = sps->sps_temporal_mvp_enabled_flag ?
0 : 0xff,
.last_picture = 0,
.pic_init_qp = pps->init_qp_minus26 + 26,
@ -674,6 +730,8 @@ static int vaapi_encode_h265_init_sequence_params(AVCodecContext *avctx)
.entropy_coding_sync_enabled_flag = pps->entropy_coding_sync_enabled_flag,
.loop_filter_across_tiles_enabled_flag =
pps->loop_filter_across_tiles_enabled_flag,
.pps_loop_filter_across_slices_enabled_flag =
pps->pps_loop_filter_across_slices_enabled_flag,
.scaling_list_data_present_flag = (sps->sps_scaling_list_data_present_flag |
pps->pps_scaling_list_data_present_flag),
.screen_content_flag = 0,
@ -1001,10 +1059,13 @@ static int vaapi_encode_h265_init_slice_params(AVCodecContext *avctx,
sh->num_long_term_sps = 0;
sh->num_long_term_pics = 0;
// when this flag is not present, it is inerred to 1.
sh->collocated_from_l0_flag = 1;
sh->slice_temporal_mvp_enabled_flag =
sps->sps_temporal_mvp_enabled_flag;
if (sh->slice_temporal_mvp_enabled_flag) {
sh->collocated_from_l0_flag = sh->slice_type == HEVC_SLICE_B;
if (sh->slice_type == HEVC_SLICE_B)
sh->collocated_from_l0_flag = 1;
sh->collocated_ref_idx = 0;
}
@ -1105,6 +1166,47 @@ static av_cold int vaapi_encode_h265_get_encoder_caps(AVCodecContext *avctx)
VAAPIEncodeContext *ctx = avctx->priv_data;
VAAPIEncodeH265Context *priv = avctx->priv_data;
#if VA_CHECK_VERSION(1, 13, 0)
{
VAConfigAttribValEncHEVCBlockSizes block_size;
VAConfigAttrib attr;
VAStatus vas;
attr.type = VAConfigAttribEncHEVCFeatures;
vas = vaGetConfigAttributes(ctx->hwctx->display, ctx->va_profile,
ctx->va_entrypoint, &attr, 1);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query encoder "
"features, using guessed defaults.\n");
return AVERROR_EXTERNAL;
} else if (attr.value == VA_ATTRIB_NOT_SUPPORTED) {
av_log(avctx, AV_LOG_WARNING, "Driver does not advertise "
"encoder features, using guessed defaults.\n");
} else {
priv->va_features = attr.value;
}
attr.type = VAConfigAttribEncHEVCBlockSizes;
vas = vaGetConfigAttributes(ctx->hwctx->display, ctx->va_profile,
ctx->va_entrypoint, &attr, 1);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to query encoder "
"block size, using guessed defaults.\n");
return AVERROR_EXTERNAL;
} else if (attr.value == VA_ATTRIB_NOT_SUPPORTED) {
av_log(avctx, AV_LOG_WARNING, "Driver does not advertise "
"encoder block size, using guessed defaults.\n");
} else {
priv->va_bs = block_size.value = attr.value;
priv->ctu_size =
1 << block_size.bits.log2_max_coding_tree_block_size_minus3 + 3;
priv->min_cb_size =
1 << block_size.bits.log2_min_luma_coding_block_size_minus3 + 3;
}
}
#endif
if (!priv->ctu_size) {
priv->ctu_size = 32;
priv->min_cb_size = 16;